What major movies have the biggest plot holes?
Star Wars: A New Hope -- Oh, not quite ready to leave this movie behind just yet. So let's get this straight, in the context of the sequels and the main plot point about Luke being Vader's son (something Lucas says was planned all along, remember): Obi-Wan had to hide Luke from Vader, and the best option was to go back to Vader's home planet, find Vader's relatives who even still have the name Skywalker, and leave an adopted child whom the relatives don't even PRETEND is their own son? And everybody on Vader's home world knows of this "Old Ben Kenobi" dude living on the planet, too. But sure, a Sith Lord with the Force will never find out about any of this... not even at the very beginning, when he's in a ship orbiting directly above his home planet. Nope, didn't sense Luke's presence at all. Or Leia's, for that matter.
Star Trek (2009) -- In the climax, the red matter creates a giant black hole right beside the planet Saturn in our Solar System. It would seem that having a giant black hole form directly beside Saturn might endanger that planet, and the gravitational pull of the black hole plus the loss of one entire planet (plus its moons) from our Solar System might disrupt the orbits of planets over time, including -- just for example -- EARTH WHERE HUMANS LIVE.
Star Trek (2009) -- Yep, same film again. This time, consider the villain's big plan for a moment: He has a drilling ship, and it drops this many-miles-long drill down into planets' atmospheres and spends a rather long time blasting a hole to the planet core, to release red matter into the planet core and create a singularity that consumes the planet. But the red matter will create a black hole anyway, it doesn't need to be sent down into the core to be effective, so the drilling delay is a huge pointless endeavor... and should've been easy to stop. It's a long mechanical drilling platform that dangles down for who-knows-how-many miles above a planet, and Kirk is able to shoot it and mess it up at one point pretty easily. So... why didn't the people on Vulcan or Earth just fly a plane into it? If for some bizarre reason the drill was a necessary part of the evil scheme, it could've been prevented quickly and easily. Hell, someone on a hang glider carrying a grenade could've ended the whole threat in seconds.
Star Trek (2009) -- And one more from this movie. Remember how the whole film starts with the premise that the Romulan ship and future-Spock's ship are sucked into the singularity caused by red matter and sent back in time? So the story hinges on the idea that when the red matter makes a black hole, at least during the formation of the black hole ships go through it and travel through time. Okay, that's... dubious, but we'll overlook it and assume something about red matter's nature makes it behave in a way that the singularity begins as some kind of wormhole-like creation making time-travel possible because JUST GO WITH IT AND DON'T THINK TOO MUCH. So that's how it works... until the end, when the exact situation occurs again -- a black hole forming from red matter right beside the Romulans' ship etc, but this time for some reason it's DESTROYING their ship (the way you'd expect a black hole to crush and consume things) and threatens to destroy the Enterprise, too. There's not really much reason given for that -- even if we pretend that the red matter being inside the Romulan ship means it destroys the whole ship for some reason, the Enterprise should still be able to time-travel like the Romulans and Spock earlier in the film. Unless the black holes don't obey any real, consistent logical rules and just function in whatever way is most convenient at the moment... Let me say I loved this film, as a life-long Star Trek fan I was worried whether the film would be any good or not, and I enjoyed it immensely despite the flaws (and the fact it's essentially a remake of Star Trek 2: The Wrath of Khan).
The Terminator -- They make it clear in the first film that no weapons can be brought back through the time machine, but the Terminator can time-travel because it's moving mechanical parts are covered by living tissue. This raises three huge plot-holes related to taking weapons back in time: First and most obvious, once the Terminator knew Sarah Connor was in Los Angeles, why didn't it just detonate its power cell (which is like a small nuclear detonation)? However, even if we answer that by noting that the first film might not have included the power cell concept (it was explained later), then the second obvious problem is that Skynet could've just opened up the Terminator's belly and stuck a nuke or more advanced weapons directly inside the Terminator, since it would've been covered by living tissue. In fact, the Terminator's arms and legs could've had guns built into them to pop out and shoot missiles. So it really doesn't make much sense. And the third problem is, if a Terminator can bypass the rule against weapons etc traveling through the time machine by having the machinery inside itself, why didn't Kyle just stuff a ray gun up his butt or cut open his leg/arm and insert a high-powered explosive inside? It might've been painful, but surely he could've come up with something like that to help him on his mission.
Back to the Future -- After George and Lorraine get married and have a son, why aren't they freaked out when their son grows up to look identical to their old strange friend Calvin who helped get them together and whom the mother was obsessed with? Didn't George ever have suspicions that his wife must've had an affair with Calvin after their marriage? Didn't Lorraine wonder how she gave birth to a clone of the guy she thought she loved? And didn't she get suspicious when eventually Calvin Klein underwear was sold in stores and looked exactly like the underwear from her mysterious old flame? EDIT: I just remembered, and confirmed in the screenplay, that they also knew their old friend "Calvin" in high school also went by the name... MARTY. He tells Lorraine this in the very first scene that they share in the past, when she keeps calling him "Calvin." So they name their eventual son after their friend (thus proving they clearly remembered him and honored him), and that son grew up to look identical to Marty and behave just like him. Lorraine might even have had a horrible sense of deja vu when Marty bought the EXACT SAME CLOTHING "Calvin" was wearing when she first met him (a day that surely stuck in her memory), including the orange vest!
Looper -- Pay close attention to the time-line in the movie. First, Joe goes through a timeline where he kills his future self, gets his payoff, retires, marries, and then the Rainmaker shows up to take over the underworld and begin killing off all of the Loopers and closing down the Looper program. Clearly the Rainmaker hates Loopers, and we're told he saw his mother killed in front of him, and he has a fake jaw from an injury to his face. Future-Joe is therefore grabbed by the Rainmaker's men and is going to be killed, but he escapes and jumps into a time-machine, going back in time and NOT being shot by Past-Joe after all. So boom, time is being changed, and Future-Joe is now searching for the Rainmaker to kill him as a child in order to save Joe's eventual wife. And of course, it turns out this is what created the Rainmaker in the first place. Cid is the Rainmaker, a mutant who sees Joe kill his mother in front of him, gets shot in the jaw by Joe, and will grow up to hate Loopers and try to kill them all off so one won't come back in time to kill his mother. Thus Joe and the Rainmaker are in fact mirror versions of one another's missions, one trying to save someone he loves in the future by stopping the killer in the past, the other trying to save someone he loves in the past by stopping the killer in the future. It's a pretty brilliant narrative and the themes are excellent. It's a really good film... except it makes no sense at all. Because we see the original time-line where Past-Joe shoots his older self and collects the payoff etc, living his entire life normally, and the Rainmaker shows up WITHOUT HAVING BEEN CREATED IN THE FIRST PLACE. Think very carefully about the entire series of events, including at the farm in the past -- there are no other people showing up who could've been the original ones trying to kill Cid, and if someone came around later in the future to do the same things that turn Cid into the Rainmaker then it would happen anyway (thus the film's ending wouldn't make sense either). There's just no way around it -- the film has the Rainmaker showing up in the original time-line despite the fact nothing happens that created him yet. The story is very clear, there's no point ignoring the obvious fact it establishes Joe is responsible for creating the Rainmaker, it's the driving point of the film, and Cid's injuries at the end are even a match for the future Rainmaker.
EDIT: I forgot another big plot-hole in Looper. Remember the entire premise for why Loopers exist? People have to be sent back in time to be killed and disposed of, because they can't hide murders or bodies anymore in the future, right? First of all, why not kill the people and then send them back through the machine, to make sure there's no possibility they escape in the past and affect the future? Also, as many people have pointed out before, why not send them back in time to before Earth had an atmosphere, so they'd die in the very ancient past and leave no trace behind at all? But here's the main problem -- if people can't be killed and disposed of in the future, and there's this elaborate system involving Loopers that has to be used, what about when they are saying the Rainmaker came along and wiped out the mob leadership and their armies and killed anybody who got in his way? The film completely glosses over that and never tries to explain it. Again, we might think up our own fan-fiction backstory to explain it, but in the film itself they establish very clear rules that define the story and world, and then this element completely contradicts it with no attempt to explain it, making it a plot-hole.
The Plot Hole: A seemingly wide hole left gaping by Michael Bay trying to be down with the cool kids.
Sam Witwicky (Shia LaBeouf), aka 'Ladiesman217,' has put a pair of glasses on eBay. By unfortunate coincidence, these are exactly the same glasses that the Decepticons are looking for because they contain the roadmap to where the All Spark is.
However, we later learn that the Decepticons can hack into the United States military network with ease, so surely placing a bid on eBay would be a walk in the park.
Only Explanation: The Decepticons don't have a Paypal account.
Ebay shipping takes some time(probably a couple of days for shipping)....may be the transformers were in hurry(considering the fact that they were taking over the world and shit)......
OR (offered by Harshil Shah)
Captcha ACTUALLY works and all robots (including ones that transform) just cannot read that stuff.
Batman Begins (2005)
The Plot Hole:
1) Bad guys Scarecrow and Ra's Al Ghul are planning to spread a water-borne nerve toxin throughout Gotham City by vapourising the city's water supply with a microwave emitter stolen from Wayne Enterprises.
Water pipes burst, sewer covers explode... but since the human body is composed of 75% water, shouldn't everybody in the city have died when the device was triggered?
Plus, what happened to anybody who boiled a kettle during the month the toxin was slowly being released into the water supply?
Only Explanation: Accidental toxin exposure... you kidding? This is Gotham City. Who's gonna notice a few more lunatics on the loose?
2 ) Ra's al Ghul tells him he must execute the prisoner from the local village. Of course Bruce cannot kill, so instead he refuses and blows up the entire facility with about 50 ninjas and the prisoner he just refused to kill inside.
"Toy Story (1995)
The Plot Hole: The first rule of being a toy is not to let the humans in on the secret that they can walk and talk...
So why does Buzz Lightyear, who thinks he's a real Space Ranger, play possum along with the rest of the gang when Andy is around?
Only Explanation: Buzz has been programmed in first contact etiquette, so he's doing the diplomatic thing by indulging the whims of the locals."
Spiderman 2 (2004):
The Plot Hole - Harry Osborne tells Doc Ock that only Peter Parker knows how to find Spider-Man. Doc Ock tracks Peter down to a cafe and flings a goddamn car straight at him.
A Man of Logic and Rationality
Doc Ock doesn’t know Peter is Spider-Man! He has to hunt down Peter and interrogate him to find out Spidey’s location. He decides to do this by flinging a car at him. If Peter wasn’t Spiderman, he would have been a deadman. And Doc Ock would have looked really silly shaking his corpse and demanding answers.
Only Explanation - Octopuses also might have sixth(or seventh) sense which told Doc Ock that Peter would dodge it.
Another Micheal Bay Extravaganza, starring Bruce Willis and Ben Affleck as oil drillers who must save the world from a giant asteroid makes about as much sense as quantum physics does to a dog.
Armageddon - 1998 (Nominated for 7 Razzie awards despite 4 Oscar nominations)
The Plot Holes(There are many) :
1) "After crashing on the asteroid, A.J. walks outside surveying the wreckage while debris is strewn out burning on the ground. This is wrong, as oxygen is needed to make something burn, and there is no oxygen on the asteroid. "
Only Explanation : Drilling for such a long time in places where even oxygen is scarce, AJ might have given Joseph Priestley a run for his money by discovering oxygen free combustion.
2) A big asteroid the size of Texas is going to hit us in 18 days. How the hell could we miss a hunk of Rock 9,000 square miles across?" The script just explains it away by having NASA man Dan Truman (Billy Bob Thornton) saying, "Its a big ass sky out there." So that is how kick ass our technology is? I mean, we have the Hubble space telescope for a reason. That thing could spot me flipping a coin in the middle of Broadway, and tell me which end it landed on. I think we can spot an asteroid 9,000 square miles across. Ok may be it can't.... but still "the size of Texas"?? really??
Only Explanation : The scientists controlling the telescope were busy with other voyeuristic pursuits.
3) "During the scene where it shows people all over the world, just before the shuttles take off, it is daylight everywhere. It would actually be dark or near dark in atleast some parts of the world."
Biggest of them all - Wouldn't it be easier to train astronauts to drill than to teach drillers how to be astronauts?
Only Explanation - Shut the F*@# up..... Bay is in charge here.
Source for Armageddon's Plot Holes(I just wanted to make sure i got all and selectively chose those i liked)